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OK thanks ,it is possible the t-con is bad too but that would be unusual, because you had a dead set you fitted the board the set came on and now has different symptoms, so unless you have made a mistake fitting the LVDS lead that goes off to the t-con board or any other lead on the board then if it was me I would be suspecting the replacement board as being bad, do you have sound?

You would have fitted this lead into the main-board you MAY have made a mistake fitting it,that is easily done so take it out again make sure you are happy that it fits straight in the socket and try the set again,this is about the only other thing outside of the t-con and a bad board that can cause this

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.